From 89cf0c1e8c7bf08f21fdd57960c744dcb1493a36 Mon Sep 17 00:00:00 2001
From: gin0606 <kkgn06@gmail.com>
Date: Tue, 12 Aug 2014 11:56:08 +0900
Subject: [PATCH] fix getEngine

---
 cocos/base/ccRandom.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cocos/base/ccRandom.h b/cocos/base/ccRandom.h
index 2be07b6a95..9bb813d29d 100644
--- a/cocos/base/ccRandom.h
+++ b/cocos/base/ccRandom.h
@@ -37,18 +37,18 @@ public:
     template<typename T>
     static inline T random_real(T min, T max) {
         std::uniform_real_distribution<T> dist(min, max);
-        std::mt19937 mt = RandomHelper::getEngine();
+        auto &mt = RandomHelper::getEngine();
         return dist(mt);
     }
 
     template<typename T>
     static inline T random_int(T min, T max) {
         std::uniform_int_distribution<> dist(min, max);
-        std::mt19937 mt = RandomHelper::getEngine();
+        auto &mt = RandomHelper::getEngine();
         return dist(mt);
     }
 private:
-    static std::mt19937 getEngine() {
+    static std::mt19937 &getEngine() {
         static std::random_device seed_gen;
         static std::mt19937 engine(seed_gen());
         return engine;